Individuals with More Experience Tend to Earn More Than Individuals

Individuals with more experience tend to earn more than individuals with less experience. This is because

A) experience is a compensating differential.
B) experience on the job increases an individual's human capital.
C) it is only fair that a more-experienced worker be paid more than a less-experienced worker.
D) the government requires that more-experienced workers be paid more than less-experienced workers.